/*
 * Copyright (C) 2012 Le Tuan Anh <anh.takaji@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package ezcms.dal.hibernate.mysql;

import ezcms.dal.ReviewDAO;
import ezcms.dto.Assessment;
import ezcms.exceptions.DataLayerException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

/**
 *
 * @author Yichao
 */
public class ReviewDAOImpl implements ReviewDAO {

    @Override
    public void createReview(Assessment assessment) throws DataLayerException {
        Session session = HibernateFactory.openSession();
        try {
            Transaction tx = session.beginTransaction();
            session.save(assessment);
            tx.commit();
        } catch (Exception ex) {
            //TODO: Log error?
        } finally {
            HibernateFactory.close(session);
        }
    }

    @Override
    public Assessment findReview(Assessment assessment) throws DataLayerException {
        Session session = HibernateFactory.openSession();
        try {
            Query q = session.createQuery("from Assessment where assessmentid = :id");
            q.setLong("id", assessment.getId());
            Object obj = q.uniqueResult();
            if (obj == null) {
                return null;
            } else {
                return (Assessment) obj;
            }
        } catch (Exception e) {
            throw new DataLayerException("Cannot retrieve user", e);
        } finally {
            HibernateFactory.close(session);
        }
    }

    @Override
    public void updateReview(Assessment assessment) throws DataLayerException {
        Session session = HibernateFactory.openSession();
        try {
            Transaction tx = session.beginTransaction();
            session.update(assessment);
            tx.commit();
        } catch (Exception ex) {
            //TODO: Log error?
        } finally {
            HibernateFactory.close(session);
        }
    }
}
